JPH0648773Y2 - Receptacle connector and plug connector for branching - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a branching receptacle connector and a plug connector for branching, and more particularly to branching a data signal to a shielded twisted wire (hereinafter referred to as a pair cable) as a transmission medium for transmitting data. The present invention relates to a branching receptacle connector and a plug connector for branching.

[0002]

2. Description of the Related Art FIG. 12 is a perspective view of a conventional connector used for branching. Referring to FIG. 12, the pair cable C has two core wires W1 and W2 and these core wires W1 and W1.
A seal line S that surrounds W2 with an insulating material interposed, and is covered with a protective coating P. Conventionally, there is no board-mounting type dedicated connector for branching to the pair cable C. Therefore, in the related art, two sets of the connector connector 65 and the plug connector 74 are used on the board circuit 80. The formed core wire W1 pattern 81, core wire W2 pattern 82, and shield wire S pattern 83 divide the core wires W1 and W2 and the seal wire S separately. The shield shells 62 and 72 of both the receptacle connector 65 and the plug connector 74 are configured to cover the outer circumferences of the connectors 65 and 74.

[0003]

As described above, conventionally, in order to branch the pair cable, a branching pattern must be formed on the substrate, and the branching can be done in the connector. This is not possible, and since the number of connectors used for branching is large, it is troublesome to attach them to these boards. Therefore, an object of the present invention is to provide a receptacle connector for branching, which can be branched into a pair cable in the connector and can be easily attached to a board. On the other hand, in the conventional connector for branching, since the shell covers the outer periphery of the connector, dust or the like is easily attached to the shell, and the dust or the like damages the contact portion of the shell to electrically connect each other. There is also a risk of making it unstable. Therefore, another object of the present invention is to provide a branching receptacle connector and a plug connector for branching in which the shell is not damaged.

[0004]

According to the invention as set forth in claim 1, a receptacle-side insulator having two fitting holes for receiving the plug-side shell provided in the mating plug connector, and the inside of each of the fitting holes. A receptacle-side shell that has two fitting portions that are respectively disposed on the plug-side shell and that contacts the plug-side shell through the fitting portions; A receptacle connector for branching is obtained, which is provided with a receptacle-side contact having two contact portions protruding inward. According to a second aspect of the invention, the receptacle-side insulator has a tubular portion, a peripheral wall surrounding the tubular portion, and an insertion groove formed between the tubular portion and the peripheral wall. The receptacle connector for branching according to claim 1, wherein the fitting hole is constituted by the tubular portion. According to a third aspect of the present invention, in the plug connector connected to the branching receptacle connector according to the second aspect, the protrusion inserted into the fitting hole, the protrusion surrounding the protrusion and the insertion groove. And a plug-side insulator having a fitting groove formed between the protruding portion and the surrounding wall for receiving the tubular portion, and provided on the outer periphery of the protruding portion to contact the receptacle-side shell There is provided a plug connector including: a plug-side shell; and a plug-side contact that is provided in the protrusion and that contacts the receptacle-side contact.

[0005]

The receptacle connector according to the first and second aspects has two fitting holes, and the fitting portions of the receptacle-side shells are arranged in the fitting holes, respectively.
Further, in the fitting holes, contact portions branching from the lead-out terminals of the receptacle-side contacts respectively project. Therefore, when the mating plug connector is fitted into each of the fitting holes, the receptacle-side shell and the plug-side shell are connected together, and the receptacle-side contact and the plug-side contact are connected together. The signal is branched in the receptacle connector and transmitted to the paired cables respectively connected to the two mating plug connectors. On the other hand, since the fitting portion of the receptacle-side shell is arranged in the fitting hole of the receptacle-side shell, dust and the like are unlikely to adhere to this fitting portion, and therefore, when the mating plug connector is connected, The joint is not damaged.
Further, in the case of the plug connector according to claim 3, since the plug side shell is surrounded by the surrounding wall, it is difficult for dust and the like to adhere, and when used in combination with the receptacle connector according to claim 2, the receptacle side shell and the plug are provided. Does not damage both side shells.

[0006]

1 is a sectional view of a receptacle connector and a plug connector for branching according to an embodiment of the present invention, FIG. 2 is a perspective view showing a state before the connection of the receptacle connector and the plug connector, and FIG. 3 is the receptacle. FIG. 4 is a perspective view of the receptacle-side shell of the receptacle connector, FIG. 5 is a perspective view of receptacle-side contacts of the receptacle connector, and FIG. 6 is a front view of the receptacle connector. FIG. 7 and FIG. 7 are rear views of the receptacle connector.
Referring to FIGS. 1 to 6, the receptacle connector 1 includes
It includes a receptacle-side insulator 11, receptacle-side contacts 12 and 13, and a receptacle-side shell 14. The connector 1 is fixed to a substrate (not shown) with screws (not shown). The insulator 11 has a fitting hole 11 for receiving a plug-side shell 23 provided in a mating plug connector 2 described later.
It has two a. The insulator 11 has a tubular portion 11d, a peripheral wall 11e surrounding the tubular portion 11d, and an insertion groove 11c formed between the tubular portion 11d and the peripheral wall 11e. A fitting hole 11a is formed in the tubular portion by 11d. Receptacle side contact 1
Pin contacts 2 and 13 are used. As shown in FIG. 5, the pin contact 12 has a lead-out terminal 52 for connecting to the board and two contact portions 51 branched from the upper end of the lead-out terminal 52 in a bifurcated shape. The pin contact 13 also has the same structure as the pin contact 12, and has a lead-out terminal 62 and two contact portions 61 that are bifurcated from the upper end of the lead-out terminal 62. Pin contacts 12, 13
Are arranged in upper and lower two stages on the insulator 11, and the contact portions 51 and 61 are respectively inserted from the rear surface of the insulator 11 into the fitting holes 11a. Also, pin contact 1
2 and 13 are connected to a substrate circuit (not shown) by lead terminals 52 and 62, respectively. As shown in FIG. 4, the shell 14 integrally has a lead-out terminal 43 and two fitting portions 42. Each fitting portion 42 has a fitting hole 11 of the insulator 11.
It is placed in a. Further, each fitting portion 42 is composed of four contact pieces 41, and is integral with the rear portion of the shell 14. Each contact piece 41 of each fitting portion 42
Are the slits 11 from the back of the insulator 11, respectively.
It is inserted in each fitting hole 11a through b, and each fitting hole 11a
It is placed in contact with the inner wall surface of a. The shell 14 is connected to the substrate circuit by the lead-out terminal 43.

FIG. 8 is a perspective view of the plug connector shown in FIG. 1, FIG. 9 is a perspective view of a plug side shell of the plug connector, FIG. 10 is a front view of the plug connector, and FIG. 11 is a rear view of the plug connector. is there. Referring also to FIGS. 8 to 11, the plug connector 2 includes the plug-side insulator 2
1, the plug-side contact 22, and the plug-side shell 23
And a cover 24. The insulator 21 surrounds the projecting portion 21a that fits into the fitting hole 11a of the receptacle connector 1 on the front surface and the periphery of the projecting portion 21a, and is inserted into the insertion groove 11c of the receptacle connector 1 with the surrounding wall 2
1b, between the protruding portion 21a and the surrounding wall 21b,
It has a fitting groove 21e that receives the cylindrical portion 11d of the receptacle connector 1. Also, the insulator 21 has
Two contact mounting holes 21c are formed from the front surface to the back surface of the protruding portion 21a. Plug side contact 22
For this, a socket contact is used. The socket contact 22 is provided in the contact mounting hole 21c of the insulator 21. The socket contact 22 contacts the pin contacts 12 and 13 of the receptacle connector 1. As shown in FIG. 9, the shell 23 has a caulking portion 23a for caulking the shielded wire S of the pair cable C and four contact pieces 23b.
3b is a slit 21d from the rear surface of the insulator 21.
And is arranged on the outer peripheral surface of the projecting portion 21a.
4 to the contact piece 41.

After connecting the socket contacts 22 to the core wires W1 and W2 of the pair cable C, the socket contacts 22 are mounted from the back surface of the insulator 21 into the respective contact mounting holes 21c, and the shield wires of the pair cable C are also mounted. The S is crimped onto the crimped portion 23a of the shell 23. Then, the cover 24 is attached to the back surface of the insulator 21 to complete the plug connector. Receptacle connector 1 and plug connector 2 described above
And the branch connector 3 is configured.

Two fitting holes 1 of the receptacle connector 1
When the protruding portions 21a of the plug connector 2 are fitted into the respective 1a, the pin contacts 12 and 13 in the respective fitting holes 11a are inserted.
And the socket contacts 22 in the protrusion 21a come into contact with each other, and the contact piece 41 of the receptacle-side shell 14 comes into contact with the contact piece 23b of the plug-side shell 23. Therefore, the pin contacts 12 and 13 of the receptacle-side connector 1 and the receptacle-side shell 14 are electrically branched into the socket contacts 22 and 22 and the shell 23 of the two plug connectors 2 and 2 connected to them.

[0010]

The receptacle connector of the present invention can be branched to two pair cables by one.
Therefore, it is not necessary to attach two receptacle connectors to the respective boards in order to branch the two pair cables as in the conventional case, and the receptacle connector of the present invention is
It can be easily attached to the substrate. Furthermore, the receptacle connector of the present invention can occupy a smaller area on the board than conventional ones. Further, in the receptacle connector and the plug connector of the present invention, since the shell is surrounded by a part of the insulator, it is difficult for dust or the like to adhere to each shell, and therefore, the contact portion of the shell is not damaged by the dust or the like. The electrical connection between the receptacle connector and the plug connector is stable.

[Brief description of drawings]

FIG. 1 is a sectional view of a receptacle connector and a plug connector for branching according to an embodiment of the present invention.

FIG. 2 is a perspective view showing a state before connection of the receptacle connector and the plug connector shown in FIG.

FIG. 3 is a perspective view showing a state after connection of the receptacle connector and the plug connector shown in FIG.

4 is a perspective view of a receptacle-side shell of the receptacle connector shown in FIG.

5 is a perspective view of a receptacle-side contact of the receptacle connector shown in FIG. 1. FIG.

FIG. 6 is a front view of the receptacle connector shown in FIG.

FIG. 7 is a rear view of the receptacle connector shown in FIG. 1.

FIG. 8 is a perspective view of the plug connector shown in FIG.

1. FIG. 9 is a perspective view of a plug-side shell of the plug connector shown in FIG.

1. FIG. 10 is a front view of the plug connector shown in FIG.

1. FIG. 11 is a rear view of the plug connector shown in FIG.

FIG. 12 is a perspective view of a connector used for conventional branching.

[Explanation of symbols]

 1 Receptacle Connector 2 Plug Connector 11 Receptacle Side Insulator 11a Fitting Hole 11c Insertion Groove 11d Cylindrical Part 11e Peripheral Wall 12 Receptacle Side Contact 13 Receptacle Side Contact 14 Receptacle Side Shell 21 Plug Side Insulator 21a Projection 21b Enclosure 21e Fitting Groove 22 Plug Side contact 23 Plug side shell 42 Fitting part 51 Contact part 52 Lead-out terminal 61 Contact part 62 Lead-out terminal

Claims (3)

[Scope of utility model registration request] 1. A receptacle-side insulator having two fitting holes for receiving a plug-side shell provided in a mating plug connector, and two fitting portions respectively arranged in the fitting holes. Further, a receptacle-side shell that contacts the plug-side shell through the fitting portion, and a receptacle-side contact that has a lead-out terminal and two contact portions that branch from the lead-out terminal and project into the fitting holes, respectively. A receptacle connector for branching, which is equipped with. 2. The insulator on the receptacle side comprises:
A cylindrical portion, a peripheral wall surrounding the cylindrical portion, and an insertion groove formed between the cylindrical portion and the peripheral wall, and the fitting hole is formed by the cylindrical portion. The receptacle connector for branching according to claim 1. 3. A plug connector connected to the branch receptacle connector according to claim 2, wherein a protrusion inserted into the fitting hole, a surrounding wall surrounding the protrusion and inserted into the insertion groove, and A plug-side insulator that is formed between the protrusion and the surrounding wall and has a fitting groove that receives the tubular portion; a plug-side shell that is provided on the outer periphery of the protrusion and that contacts the receptacle-side shell; A plug connector provided in a protruding portion, the plug connector being in contact with the receptacle contact.